Crew members on the world’s largest luxury liner may want to hand out helmets as passengers disembark at a brand-new Brooklyn cruise ship terminal next week.

A 3,000-square-foot section of the Red Hook terminal’s interior ceiling collapsed yesterday, a week before thousands of tourists are set to flood the Brooklyn waterfront from the gargantuan Queen Mary 2.

Six workers were injured, but none seriously, and some returned to the job later in the day.

“Work has already resumed,” assured Janel Patterson, a spokeswoman for the Economic Development Corporation. “We expect the new terminal to open as scheduled on April 15 when it welcomes its first ship – the Queen Mary 2.”

But the collapse of what is known as a “false ceiling” – a suspended canopy between the floor and the terminal’s lofty pitched roof – was not the kind of preview city and cruise officials were hoping to get of the $52 million facility’s grand opening.

State and city officials will cut a ceremonial ribbon marking the completion of the new terminal at Pier 12 as 2,600 passengers conclude a 38-day scenic voyage from Los Angeles through South America. Later that day, a nearly equal number will board for a new Atlantic cruise.

City officials say the new terminal will help unclog the crowded New York Cruise Terminal on Manhattan’s West Side as it is undergoes renovations.